OFFCUP Number 12/21 Foil Balloon, 40 Inches

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Product guide

OFFCUP Number 12/21 Foil Balloon, 40 Inches

Inches: OFFCUP Number 12/21 Foil Balloon is listed as a large decorative number balloon for birthdays and other celebrations. The listing describes a 40-inch size, inflation with air or helium, and a reusable, self-sealing design; customer feedback also flags concerns about durability and deflation.

At a glance

The listing describes a 40-inch number balloon intended to make a visible party decoration.
The self-sealing valve is described as closing after inflation; a straw is also described for deflating it for storage and reuse.
A hanging hole is described for displaying the balloon.

Price

€5.03Save 10%

Reference price: ~~€5.59~~

Price checked: 11 Nov 2026

View offer

Often bought together

Happium 12" Latex Assorted Balloons Age 12, Birthday Balloons Number 12, Pack of 10, Multicolour

€2.59

Pros and cons

Pros

Air or helium inflation offers flexibility in how to display it.
The stated self-sealing and reusable design, with deflation via straw, could make it suitable for storage and later use.

Cons

Customer feedback reports holes along the edges and quick deflation, which may limit how long the decoration remains inflated.

Technical specifications

9 specifications

Identity
Brand	OFFCUP
Model	V9-GDS-12-QIQ-FBA
Numeric theme	Number 12
Size	12/21

Materials and use
Material listed	Aluminium
Inflation	Inflate with Helium or Air
Special features	Reusable, Self Sealing
Occasion	Birthday
Hanging	hanging hole on the top of the balloon

What to know before buying

Listing details to confirm

Listing details are inconsistent: the title presents a 12/21 colour balloon and a 40-inch size, while product details identify the numeric theme as Number 12 and size as 12/21; the description says each balloon is about 100 cm. The title/details also refer to a single balloon, but a feature claim says the set contains two number balloons and two straws; check the selected listing for the exact numbers, colours and contents.

What’s in the box

Number balloons (2 claimed)Check selected pack
Plastic straws (2 claimed)Check selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Buyers decorating a birthday, anniversary or other celebration who want a large foil number display.
Those who want the option to inflate with air or helium and deflate the balloon for storage.

Less suited to

Buyers who need confidence in long-lasting inflation, given customer reports of holes and quick deflation.
Buyers who require an unambiguous colour, number combination or confirmed pack quantity.

OFFCUP Number 12/21 Foil Balloon, 40 Inches · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 4,034 ratings

5 stars70%70%
4 stars10%10%
3 stars5%5%
2 stars3%3%
1 star12%12%

Customer feedback mentions the balloons' colour and perceived value positively, but reports mixed quality and concerns about inflation and durability, including holes along the edges and quick deflation. Those concerns matter if the balloon must stay inflated throughout an event; the listing's self-sealing and reusable claims do not resolve them. The aggregate rating is 4.2 out of 5 from 4,034 ratings, but that figure does not explain individual experiences.

Positive themes

Customers are reported to like the colour.
Some customers consider them good value for money.

Negative themes

Customers report holes along the edges and quick deflation.

Mixed feedback

Feedback on quality is mixed, with some describing the balloons as great and others as terrible.
Value for money receives mixed feedback.

Frequently asked questions

What number does this balloon display?

The title describes it as number 12/21, while the product details say Number 12. The listing does not make the exact displayed number fully clear, so check the selected option before buying.

Can it be inflated with air or helium?

The title and description claim it can be inflated with either air or helium. The listing does not provide further guidance on how it behaves with either fill.

Can it be saved for reuse?

The listing describes a self-sealing valve and says the balloon can be deflated through the valve with a straw, folded and stored. Customer feedback nevertheless reports holes and quick deflation.